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首页> 外文期刊>日本機械学会論文集. A編 >Hierarchical Modelling and Local Stress Analysis of Composite Materials and Structures
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Hierarchical Modelling and Local Stress Analysis of Composite Materials and Structures

机译：复合材料和结构的层次建模和局部应力分析

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摘要

In the numerical simulation of mechanical behaviors of composite materials and structures, a novel hierarchical modelling technique is proposed. Not only the global deformation but also the mesoscopic stresses are analyzed precisely with less human efforts than conventional methods. Four level hierarchy is defined for the textile composites, and the homogenization method and finite element mesh superposition technique are adopted. The latter technique makes it possible to overlay arbitrary local fine mesh on the global rough mesh. A panel with a rib made of knitted fabric composite material is analyzed by the proposed method. Three-dimensional modelling of the mesostructure of knitted fabric composite material is also shown. The validity of the proposed method was examined, and the mesoscopic stresses are calculated easily.
机译：在复合材料和结构力学行为的数值模拟中，提出了一种新的层次建模技术。与常规方法相比，无需人工即可精确地分析整体变形和介观应力。为纺织品复合材料定义了四个层次，并采用均质化方法和有限元网格叠加技术。后一种技术可以在全局粗糙网格上覆盖任意局部精细网格。通过所提出的方法来分析具有由针织物复合材料制成的肋的面板。还显示了针织织物复合材料介观结构的三维建模。研究了所提方法的有效性，并容易计算出介观应力。

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